Engraving-machine.



Patented nec. u, 1900.

W. S. EATON.

ENIHAVINGI- MACHINE.

(Application filed Sept. 17, 1900.!

(No Model.)

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No. 663,563. Patented Dec. Il, |900. W. S. EATON.

ENGRAVING MACHINE.

(Appution med sept. 1'7, 1900. (No Model.) 2 Sheets-Sheet 2.

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Artnr WILLIAM S. EATON, OF SAG HARBOR, NEV YORK, ASSIGNOR TO THE EATON t GLOVER COMPANY, OF NEXV YORK, N. Y.

ENGRAVING-VIACHINE.

SPECIFICATION forming part of Letters Patent No. 663,563, dated December 11, 1900.

Application filed Septemberl'?, 1900. Serial No. 30,253. (No model.)

To @ZZ whom, t indy concern,.-

Beit known that LWILLIAM S. EATON,a citizen of the United States, and a resident of Sag Harbor, Suffolk county, State of New York, have invented certain new and useful Improvements in Engraving Machines, of which the following is a specification.

This invention relates to an engraving-machine more particularly designed for engraving numbers on bodies carrying scales, such as thermometersand the like. The machine is provided with a pattern-plate which may be moved beneath the tracer and impart a proportionate movement to the slide-rest carrying the work. Thus while the pattern-plate may be considerably longer than the work to be engraved, both will be so moved that a given fraction of the pattern will advance simultaneously with a like fraction of the work, and that thus pattern and work run through the machine at the same time. V

rlhe machine is so constructed that it may be readily set for larger or smaller work-pieces, which may be properly numbered from one and the same pattern-plate.

In the accompanying drawings, Figure l is a side elevation of my improved engravingmachine; Fig. 2, a front elevation thereof; Fig. 3, a horizontal section on line 3 3, Fig. 1; Fig. il, a cross-section on line 4 4, Fig. 3; Fig. 5, a front elevation, partly in section, of the machine, on a larger scale; Fig. 6, a plan of part of the machine-table and patternplate, showing the parts in a different position from Fig. 3; and Fig. 7, a detail section through the lever n.

The letter u. represents the frame of the engraving-machine, and u/ is the bed-plate, provided with parallel rails a2 for guiding a laterally-movable slide l), to which the pattern-plate B is secured.

c is the tracer, connected by arm c to the lever c2, suspended at c3 by auniversal joint from the machine-frame a. To the lever c2 tool, all as usual.

raised off the work by rest f, operated from treadlef by rod f2, leverf3, and chain f4.

g is a support which is vertically adjustable on framea and is held in position by set-screws g. The support g is' engaged by a laterally-movable bracket 7i, which is held in position by clamp-screw h and in turn carries a backwardly and forwardly adjustable base t', clamped in position by screw i. The base i is provided with rails i2, upon which is free to move the laterally-movable slide-rest j, to which the thermometer or other work-piece A to be engraved with numbers may be attached in any suitable manner.

In order to transmit a proportionate movement from the pattern-plate B tothe sliderestj, l have devised the following construction: From the table a projects a stud 7c, upon which is mounted a double pulley consisting of two sheaves lo k2, bearing about the same proportion as that between the scale on the pattern-plate and on the thermometer, the drawings showing the proportion as one to four. To the larger sheave c/ is secured a cord b4, which is wound around the sheave and attached at its other end to a projection b of slide b. This slide is provided on one edge with notches b2, adapted to be engaged by a detent b3, which serves to hold the slide in position, while the lines of the pattern are followed by the tracer. To the smaller sheave k2 is secured a cord m, which is wound around the same and is secured at its other end to the free end ofa curved levermfulcrumed to plate ct at n. This free end of lever n is normally drawn against a stop o by means of a weight p, suspended from the lever by a cord p. The lever is preferably slotted, as shown, to form the guide for a slide q, movable within the slot along the lever and which may be held in position by a screw-clamp q. To the slide q is secured one end of a cord r, which runs over pulley r' of bed-plate al and over pulley r3 of base t' and is attached at r2 to the sliderest j. From this slide-rest is suspended by cord s, running over pulleys s s2, a weight t, which has a tendency to draw the slide-rest toward the right.

The operation is as follows: Set the slide q at zero-fi. e., at the pivoted end fn. of lever n,

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Fig. 7. Move the pattern-slide b until the rst mark of the pattern B (90 in the drawings) is brought underneath the tracer c, this being the position shown in` Fig. 3. Place the thermometer upon the slide-rest j and secure it thereto in such a position that its rst mark is brought underneath the engraving: tool e. Slide the pattern-slide toward the left until the last mark of the pattern B (110 in the drawings) is brought underneath the tracer, swinging by this motion the lever fn. without, however, moving the slide-rest Set the slide q forward on `lever n to move the slide-restj and clamp the slide q in position as soon as the last mark on the thermometer is brought underneath the engraving-tool. Move the pattern-slide toward the right to again bring its first mark in line with the tracer and to permit weight p to swing lever n back against the stop o. By the operation thus far described the machine has been set to engrave the figures on a scale of one particular length, and of course the adj ustment will hold good for all scales of the same length.

After the machine has been set in the manner described the tracer is moved over the first igure of the pattern in the usual manner, so that the engraving-tool will cut a similar Iigure into the thermometer. The pattern is now fed toward the left until the click b3 engages the next notch b2, and the engraving operation is repeated. During each movement of the pattern the lever n will be swung slightly upon its pivot to move the slide-rest and work in proportion to the movement imparted to the pattern-that is to say, if each movement between notches will advance the pattern-plate one-sixth of its length such movement will advance the` thermometer to one-sixth of its length. After the engraving operation is completed the pattern is moved back toward the right into its initial positon, Fig. 3, and simultaneously the lever n will be swung back against stop o by the weight p, while the slide-restj will be moved toward the right and into its initial position by the weight t.. The machine is thus in position to receive and engrave a new work-piece.

What I claim is- In au engraving-machine, the combination of a pattern-slide with a double pulley connected thereto, a lever also connected to said pulley, a slide engaging the lever, and a sliderest connected to the slide, substantially as specified.

Signed by me at New York city, county and State of New York, this 15th day of September, 1900.

' WILLIAM S. EATON. Witnesses:

F. v. BRIESEN,

WILLIAM SCHULZ. 

